D-谷氨酸  6893-26-1

Appearance

White powder

conforms

Specific rotation[α]20/D

(C=10 in 2N HCl)

-31.0 to -32.2 Degree

-32.0°

State of solution

(Transmittance)

Not less than 95.0%

97.4%

Chloride (Cl)

Not more than 0.10%

0.008%

7Heavy metal(Pb)

Not more than 10ppm

<10ppm

Arsenic(As2O3)

Not more than 2ppm

<2ppm

Loss on drying

Not more than 0.20%

0.16%

Residue on ignition(sulfated)

Not more than 0.20%

0.1%

Assay

98.0 to101.0%

99.2%